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Old Aug 21, 2009 | 02:04 AM
  #1  
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Default A/C Unit

Ok my car blows air and blows hot air just not cold air. What can i do to fix this?
 
Old Aug 21, 2009 | 11:39 AM
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could be a few things causing this. Possibly low A/C refrigerant, air inlet doors arent working or are stuck. Is the air hot as if the heater is on or just feel the same temprature as outside? give us some more details please and well try to help out.
 
Old Aug 21, 2009 | 07:20 PM
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Yes it blows hot air as if the heater is on.
 
Old Aug 22, 2009 | 12:28 AM
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Ok seems like a stuck vent door. see if you can pull any codes that will tell me if you got a stuck air vent door (which switches from hot to cold) also see if you can get an A/C guage and check the pressure of the system it should be around 35psi - 55psi max. let me know what you come up with. thanx
 
Old Aug 22, 2009 | 06:37 PM
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I dont know how to pull codes and i wouldnt know where to use a/c guage
 
Old Aug 22, 2009 | 06:37 PM
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sorry
 
Old Aug 22, 2009 | 10:10 PM
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Originally Posted by dipsetbitch
I dont know how to pull codes and i wouldnt know where to use a/c guage
go to our FAQ section and you will find much of what you ask already there, including pulling codes.

we need codes to provide help.

.
 
Old Aug 23, 2009 | 12:35 AM
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Originally Posted by dipsetbitch
I dont know how to pull codes and i wouldnt know where to use a/c guage
what year of cadillac do you own? or is this a cadillac, i cant tell on your profile so this cant help me tell you how to pull the codes.
 
Old Aug 26, 2009 | 03:59 PM
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it is a 96 cadillac deville
 
Old Aug 26, 2009 | 08:18 PM
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To enter diagnostic mode, proceed as follows:
  1. Turn ignition "ON." Engine can be either OFF or RUNNING. For cars equipped with the Digital Instrument Panel Display (Digital IPC):
  2. Simultaneously press the "OFF and "WARMER" (red) buttons on climate control center (CCC) until all display segments (IPC and CCP) are illuminated For cars equipped with the Analog Instrument Panel Display (Analog IPC):
  3. Simultaneously press on the Climate Control Panel (CCP) the "OFF" and "PASS WARMER" (up arrow) buttons.
After the segment display test, the driver message center displays all set DTC(Diagnostic Trouble Codes), current and history, in the following order:
  1. PCM DTC
  2. IPC DTC
  3. ACM DTC
  4. SDM DTC
  5. TCS DTC
  6. PZM DTC
  7. IRC DTC
  8. RFA DTC
  9. CCP DTC
  10. MSM DTC
  11. MMM DTC
  12. PHN DTC
On the OBD II cars, the prefixes you'll see are: "IP" for the IPC instrument panel; "AC" for air conditioning module; "TC" for traction control; "RS" for the road suspension system; "SD" for the air bags; "PZ" for the body control module; "CC" for the cell phone; "RF" for the integrated radio system.

To exit the diagnostic mode anytime during the test, depress the "ECON" or "DEFOG" button, or turn the ignition switch "OFF." Hope this helps let us know what you come up with.
 

Last edited by 92_Daddylac; Aug 26, 2009 at 08:21 PM.



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